Seiko Cal. 6665 - 416

The 6665-416 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-bd37d94da329]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1976

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